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alexgriva [62]
3 years ago
9

Consider the reaction a + b c +

Chemistry
1 answer:
lana66690 [7]3 years ago
6 0
When the reaction is at  equilibrium  ∴ΔG = Zero 
now we need to get Δ G°, we can get it from this formula:
ΔG° = - RT㏑K(eq)
when we have R = 8.315 J/mol°K and T in Kelvin = 25+273 = 298
so we need to get the K(eq) from this formula:
K(eq) = concentration of products / concentration of reactants
          = [ C] [ D] / [A] [B]
          = (0.8*0.8) / (0.2*0.2) = 16
by substitution in ΔG° formula:
∴ ΔG° = - 8.315 * 298 *㏑(16) = -6870 Jmol^-1 /1000 = - 6.87 KJ mol^-1
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